Godfrey, IL (KSDK) - Police are asking for the public's help in identifying a man who robbed a Metro East convenience store Thursday night.

According to Captain T. Mike Dixon, Chief of Detectives for the Madison County Sheriff's Office, the incident happened before 9:55 p.m. at Casey's General Store in the 6300 block of Godfrey Road.

Deputies met with store clerks who said a well-dressed man had just fled the scene with an undisclosed amount of cash. Authorities searched the surrounding area but could not find the suspect.

The clerks told deputies the suspect walked into the store wearing a ski mask, displayed a handgun and bag, and demanded money, Dixon said.

The suspect is described as an African-American man between 20 and 40 years of age, standing 6'1" or 6'2" tall, weighing 180 to 210 pounds with an athletic build. He was wearing a grey suit, blue dress shirt, a dark scarf, black and white tennis shoes and a dark ski mask.

Anyone with information on the suspect's identity and whereabouts is asked to contact the Madison County Sheriff's Office at 618-692-4433 or their anonymous tip line at 618-296-3000.